Means for applying adhesives



March 21, i939.

R. BARNARD MEANS FOR APPLYING ADHESIVES Filed Oct. 5, 1937 74 5e 71 1 84 H 96 y uoe 3maentor Cittomeg Patented Mar. 21, 1939 PATENT OFFICE MEANS FOR APPLYING ADHESIVES Ray Barnard, St. Louis, Mo. Application October 5, 1937, Serial No. 167,348

12 Claims.

The present invention relates to means for applying glue and other fluid or semi-fluid adhesives.

While the present invention is useful for other purposes, it is intended primarily for applying an adhesive, such as glue, to continuous lengths of narrow fabrics such as bindings, pipings, tapes,

etc., and to lengths of other materials and is especially useful for coating only a predetermined width of the surface of such narrow materials leaving an adjacent surface portion of the latter uncoated. This is desirable especially in connection with certain ornamental materials, such as fabric, leather or imitation leather pipings utilized in shoe uppers for ornamenting the latter where the portion of the piping which is visible in the shoe upper should be free from a coating of the glue or other adhesive. One object of the invention is to provide improved means for facilitating the application of adhesive to lengths I of materials of the character referred to.

Another object of the invention is to provide adhesive applying means having a chamber in which the adhesive is contained and preserved by inhibiting the passage of air into said chamber, and for that purpose to provide means for transferring the adhesive from the chamber to the material which is independent of the air pressure within said supply chamber.

Another object of the invention is to provide adhesive applying means in which fabrics of different widths may be treated for applying adhesive thereto or to a predetermined surface portion thereof.

It is also an object of the invention to provide adhesive applying means constructed and arranged to permit variations in the quantity of adhesive applied to the material.

A yet further object of the invention is generally to improve the construction of adhesive applying devices whereby to facilitate the application of the adhesive to narrow fabrics and other lengths of material in a continuous manner.

The above objects of the invention and other objects ancillary thereto will be fully understood from the following description considered with reference to the accompanying drawing which illustrates a preferred embodiment of the invention.

In the drawing:

Fig. 1 is a side View in elevation of a device embodying the present invention;

Fig. 2 is a sectional view of the device detached from the supply chamber and viewed as taken along the line 2-2 of Fig. 3;

Fig. 3 is a bottom plan View on the line 33 of Fig. 1;

Fig. 4 is a sectional view on the line 44 of Fig. 2;

Fig. 5 is a perspective View of a presser mem- 5 ber forming a part of the device.

Referring now more particularly to the drawing, the device constructed in accordance with the present invention comprises, as here shown,

a jar Ill having an externally threaded neck l2. 0 Said jar may be made of any suitable material, for example, metal or glass, although a glass jar which is translucent or transparent is preferred so that the quantity of adhesive or other substance within the .iar may be readily observed. The jar l0 which forms the supply chamber may be constituted by the container in which the adhesive is shipped and supplied to the consumer. With the jar IQ is associated the applicator unit M constructed in accordance with the present invention and assembled in combination with saidjar for accomplishing the objects of the invention.

Unit l4 comprises an internally threaded cup l6, preferably of metal, removably secured to neck [2 of the jar and normally positioned as illustrated in Fig. l which shows the jar ID in inverted position. It will be understood that cup is serves as a closure for the jar preventing the ingress of air into the jar. It will be further unw derstood, of course, that provision is made for transferring adhesive from the supply chamber constituted by jar Ill to the material. For this purpose cup I6 has an opening [8 in its flat bottom wall 20, said opening being preferably rectangular. A roller 22 is carried by cup l6 and is mounted for rotation in such position above wall 20 that a peripheral portion of said roller substantially fits opening l8 and projects through the latter for transferring glue from the supply chamber to the material without permitting a free flow of the glue through said opening. Accordingly, opening I8 is but slightly wider than roller 22 and is otherwise dimensioned whereby said roller, although free to rotate therein, serves as an adjustable closure therefor. Roller 22 is provided with a plurality of closely spaced transverse shallow grooves 24 arranged on the periphery thereof for conveying glue or other substance from the supply chamber to the material and for providing frictional engagement between the length of material and the roller whereby said roller is rotated as the length of material is moved longitudinally in engagement with the material as will hereinafter more fully appear.

The mounting for roller 22 will now be described with particular reference to Figs. 2 and 4 of the drawing. As here shown, said roller is journalled on the stem of a pivot screw 26 threaded into the lower ends of the legs of U-shaped member 28 which constitutes a holder for said roller. Holder 28 is carried by a bracket post 35 having a reflexed foot portion 32 which is secured in any suitable manner, as by a screw 35, to bottom wall 20 of cup l6. Said holder is adjustable longitudinally of bracket post 3!] and for that purpose is held in slidable engagement with said post by a bolt 36 fixedly secured to post 35 and engageable in aligned slots 38 provided in the legs of said holder and extending longitudinally thereof. Holder 28 is resiliently pressed downwardly by a helical spring 46 which bears at one end thereof on the closed end of holder 28 within a recess 42 formed.

in said closed end and is engaged at its other end by an adjustable screw 45 threaded through an opening in the upper refiexed end portion 26 of post 35. Holder 28 is held against rotation byadjustable stop screws 48 and 5G in threaded engagement with portion 45 and ear 52, respectively, at the top and side of bracket post 35. If desired, in certain cases, spring 55 may be eliminated and screw 48 may be adjusted to limit the upward movement of holder 28, the weight of said holder normally serving to force roller 22 in operative position in opening id to prevent the free flow of adhesive through said opening.

As previously stated, roller 22 is rotated by engagement therewith of the length of material to which the adhesive is applied in the operation of the device and for that purpose a guide passage for the material and means for pressing the latter into engagement with roller 22 are provided and will now be described. This passage is constituted, as here shown, by a groove 54 formed in a metal plate 55 which is welded, brazed, soldered or otherwise secured to theouter surface of wall 25 of cup 5.. Said plate is provided with a rectangular opening 58 which registers withcup opening it and through which a narrow peripheral portion of roller 22 projects fcrengagement by the length of the material to which the adhesive is applied, opening 58 being appropriately dimensioned for this purpose.

Opening 58, in plate 56 is preferably positioned so that one side edge thereof lies closely adjacent one side 56 of groove 54 where the apparatus is, as here, designed for the application of adhesive to a marginal surface portion of the material. Groove 55 is wide enough to receive lengths of material of the maximum width for which the apparatus is designed. However, provision is made for guiding narrower materials in engagement with roller 22. For this purpose, plate 56 is provided with an adjustable part 62 which is movable toward and away from side 55 of groove 54. For this purpose a part 64 of plate 56 is of reduced thickness and slidable plate part 62 is held in sliding engagement therewith by any suitable means here shown as screws 66 which are threaded into a bracket 68 secured to the bottom surface of plate 55, said screws passing through elongated slots 10 formed in an integral refiexed side portion 72 of plate 62. It will be understood that as the length of material, indicated by the reference character L in Fig. 1, is moved longitudinally of groove 54 in engagement with. roller 22, one side edge of said materialis in engagement with side walls 61! of groove 55 and the op;

posite side edge of said length of material is en- 7 gaged by the opposed edge 14 of adjustable plate 62.

The means for pressing the length of material into engagement with roller 22 as said material is moved longitudinally of groove 54 will now be described. As clearly shown in the drawing, said means comprises a presser member 16 (Fig. 5). Said member is p-ivotally Vmounted on a, bearing pin 18 and for that purpose is provided with a through aperture 80. Pressure member I6 is provided at one end thereof with a pressure foot 82 for engaging the length of material and holding the same in engagement with the periphery of roller 22. The other end of member '56 is provided with spaced side wall portions 34 forming a guide for the length of material L. It will be observed that member 16 constitutes a lever and that said lever is fulcrumed at a point closer to the end at which presser foot 82 is provided than to its opposite end whereby the lever arm between said fulcrum and said opposite end is longer than the" lever arm between said fulcrum and said lever at one end of which presser foot 82 is provided. As the length of material L is drawn through passage 54 between presser foot 82 and the periphery of roller 22 and through the guide passage at the outer end of pressure member 16, the latter, by pressing the length of material against the bottom 85. of the passage formed by guide walls 84, exerts a force on said presser member tending to increase the pressure of presser foot 82 against the material in engagement with the periphery of roller 22. Thus it will be understood that as the length of material is drawn through the apparatus in this manner, roller 22- is caused to rotate and thereby to transfer adhesive or other substance fromthe chamber of jar H! to a surface portion of the material without however applying adhesive to adjacent surface portions of the material when the latter is wider than roller 22.

Pin 18, upon which presser member 15 is fulcrumed, is carried by a bracket 85' (Fig. 3) carried by plate 56 at the bottom thereof. As here shown, said bracket is pivotally mounted on-a pivot screw which is threaded into plate 56. Said bracket 53 can thus be inovedfrom its normal position, shown in full lines, in which pivot pin 78 extends transversely of groove 54 to its dotted line position, as shown in Fig. 3, in which pivot pin 1-8 extends in parallel relation to said groove Stop members 92 fixed to plate 55 are provided for limiting the movement of said bracket and for positioning the latter with pin 18 transversely of groove 55. Presser member 16 is releasably held on pinslt by .flat spring 94 releasably secured at one end 96 thereof to bracket 68 in any suitable manner as by. a screw [50 and engaged at its other endportion N12 to the adjacent side of pressermember 76 to releasably retain the latter on pin 18. By releasing spring 94 from pin '18, presser member '35 can be readily removed from pin 18 for cleaning or for any other purpose, and bracket 88can be swungfrom its full line position to its dotted line position for any purpose, as for example to facilitatefclean' ing of the parts or to facilitate the'insertio-n of the length of the material in the groove in the initiation of the operation of the apparatus for applying adhesive to said material.

Any suitable support for the apparatus may be provided. As here shown, said support com- I Said base is open 'at oneend' to permit the assembly of'pres'ser member 16-on pin 18 and at its other end 'hasa vertical wall I06 which is connected to plate 54 forsupporting the apparatus. For this purpose, the upper end of wall 106 has an inwardly bent portion 108 which is connected 'toplate why any suitable means here shown as screws H0, said screws passing through threaded openings 1 l2 in said plate and through aligned openings formed in said reflexed lower portion'lDS. I f p Thus, it is seen that the construction herein shown and de'scribed'is well adapted to accompli sh the several objects of the present invention. I It will be understood, however, that certain-changes inthe construction and arrangement of parts may be made without departing from- 'thespirit of the invention and the scope 'thereof'as defined. by the appended claims considered with reference to the prior art.

Having thus described my invention, what I claimand desire to secure by Letters Patent is: L'Ina 'deviceof the class described for applying a substance to a length of material, means forming a supply chamber for said substance provided with an outlet opening, and a roller rotatably mounted in said chamber and partially projecting through'said opening for transferring said substance within said chamber to a point externally thereof while preventing the free passage'o'f said: substance through said opening, and means for supporting said'roller adjustably in relation to said opening, said supporting means comprisinga fixed bracket, a member carrying said rollerponnected to said bracket and movable'in" relation thereto toward and away from said opening, anda spring bearing on'said bracket' and on said roller carrying member for res'iliently urging said roller toward said opening. 2. In a device of the class described for applyinga substance to a length'of material, means forming 'a supply'chamber for said substance provided with an outlet opening, a roller rotatably mounted in said chamber and partially projecting through said opening for transferring said substance within said chamber to a point externally thereof while preventing the free passage of said substance through said opening, said roller 'beingfmounted for movement within said chamber toward and away from said opening, andmeans for supporting said roller adjustably in relation to said opening, said supporting means comprisinga fixedbracket, a member carrying said roller connected to said bracket and movable in relation thereto toward and away from said opening, and 'a spring bearing on said bracket andon said roller carrying member for re- I direction substantially tangentially of the roller periphery and transversely of the roller axis effects rotation of said roller for applying said substance to said material, saidpressing means comprising a. member pivoted between its ends and constructed and arranged to be urged into engagement at one end thereof with said ma-- terial to press the same against said roller by pressure applied to said member at its other end by said material during said movement of the material.

4. In a device of the class described for applying a substance to a length of material, means forming a supply chamber for said substance provided with an outlet opening, a roller rotatably mounted in said chamber and partially projecting through said opening, means for pressing a length of material into engagement with said roller externally of the chamber whereby longitudinal movement of said material in a direction substantially tangentially of the roller periphery and transversely of the roller axis effects rotation of said roller for applying said substance to said material, said pressing means comprising a member pivoted between its ends and urged into engagement at one end thereof with said material to press the same against said roller by pressure applied to said member at its other end by said material during said movement of the, material, and means on said pivoted member for guiding the material into engagement therewith.

5. In a device of the class described for applying a substance to a length of material, means forming a supply chamber for said substance provided with an outlet opening, and means for pressing a length of material into a position adjacent said opening comprising a member pivoted between its ends and constructed and arranged to be urged into engagement at one end thereof with said material by pressure applied to said member at its other end by said material'in the course of movement of the material longitudinally of said member.

6. In a device of the class described for applying a substance to a length of material, means forming a supply chamber for said substance provided with an outlet opening, means for pressing a length of material into a position adjacent said opening comprising a member pivoted between its ends and constructed and arranged to be urged into engagement at one end thereof with said material by pressure applied to said member at its other end by said material in the course of movement of the material longitudinally of said member, and means on said pivoted m member for guiding the material into engagement therewith.

7. Means for applying a substance from a supply chamber to a length of material externally of said chamber, said means comprising a member having an opening, a roller mounted within said chamber and partially projecting through said opening for transferring the substance from said supply chamber to said material externally of said chamber, said roller having a portion rotatable in said opening and projecting therethrough for engagement by said material, and means for supporting said roller on said member in adjustable position in relation to said opening, said supporting means comprising a bracket carried by said member, a member on which said roller is rotatably mounted, and an adjustable pin and slot connection between said bracket and said roller carrying member.

8. Means for applying a substance from a supply chamber to a length of material externally of said chamber, said means comprising a member having an opening, a roller mounted within said chamber and partially projecting through said opening for transferring the substance from said; supply-chamber to said material externally of said chamber, said roller having asportion rotatable in said opening and projecting there through for engagement by said material, means for pressing said material into engagement with said projecting portion of said roller, and means for-supporting said roller on said member in adjustable position in relation to said opening, said supporting means comprising a bracket carried by said member, a member on which said rQller is rotatably mounted, and an adjustable pin and s ot connection between said bracket and said roller carrying member, said first mentioned member and roller supporting means being attachable to and detachable from said supply chamber as a unit.

V 9. Means for applying a substance from a sup-. ply chamber to a length of material externally of said chamber, said-means comprising a member having an openinga roller mounted within said chamber and partially projecting through said opening for transferring the substance from said supply chamber to said material externally of said chamber, said roller having a portion rotatable in said opening and'projecting therethrough for engagement by said material, and means for supporting said roller on said member in adjustable position in relation to said opening, said supporting means comprising a bracket carried by. said member, a member on which said roller is rotatably mounted, and an adjustable pin and slot connection between said bracket and said roller carrying member, said first mentioned member and roller supporting means being attachable to and detachable from said supply chamber as a unit. V 10. Means for applying a substance from a, supply chamber to a length of material externally of said chamber, said means comprising a member having an opening, a roller carried by said member adapted to be mounted within said chamber and partially projecting through said opening for transferring the substance from said supply chamber tosaid material externally of said chamber, said roller having a portion rotatable in said openingiand projecting therethrough for engagement by said material, and means for pressing a length of material into engagement with said roller externally of the chamber whereby longitudinal movement of said material in a direction substantially tangentially of the roller periphery and transversely of the roller axis effects rotationof said roller for applying said sllbStance to said material, said pressing means comprising a member pivoted between its ends and constructed and arranged to be urged into engagement at one end thereof with said material to pressth same agairistsa d r ller b p e ure app d t said-m m e atitsoth nd i by said material during said movement of the material. I v 4 ll, Means for applying a substance from- 8. s pply cha ber t l nsth of m te ial este nally of sa d cha r,- sa d means compris ng a member having an opening, a roller carried by said-'member-adapted, to b mql l'lted within said chamber and partially projecting through said opening for transferring the'substance from a said supp y chamber to sa d materia exte ally of said chamber said r er having a ortion rotatable in said opening and projecting therethrough for engagement-by said material','mea1.1$ for pressing a length of material into engage.- ment with saidroller externally of the chamber wher y longitudinal movement of, said material in a direction substantially tan entially of the r ller-p riphe y n ransve s y of the roller axis effects rotation of said roller for applying aid substa ce to said'mate ial, said pres in means comprising a member pivoted between its ends and constructed and arranged tofbe urged into engagement at one end-thereof with her and p t al P j ting rou h, said opene m for t ansfe ng he b ance f m said supply c am e o a d material externally of said chamber, said roller having a portion rot t ble in said op ning n pr jecting here ough-for en agement b s id mat r l, means or p i g a len t of ma ri nt engage ment with said roller externally of the chamber whereby on itudina mov me t oi sa aterial ina direction substantially tangentially of x the roller periphery and transversely of the roller axis efiects rotation-ofsaid roller for applying sai su st n e to sa material, said, p e s n means comprising a member ot d b twe n it ends and onstructed a d arran ed o be urged into engagement at one end thereof with said material to-pr ss thesam a ai st said roller by pr ssure a plied t said m mber atits othe end by said material during said movement of "the m te ialand means on said p voted membe -I01. ui ing th materia into eng em n the ew th- RAY BARNARD.

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